There are a variety of trails on Park City. I'd probably suggest the Nomad but it depends on your build. I would bring pads, there is some DH on Park City mountain and Deer Valley has several lift served DH trails.

Deer Valley specifically had killer DH trails... The rest are good and a lot of fun, great climbing, but they are more or less fairly mellow terrain wise. Hardtail does 100% fine for example... Hope it helps..